Legume-gramineous green manures mitigate soil acidification and enhance carbon sequestration via increased enzymatic activities in intensive agroecosystems - Yadi Yu; Yuli Hu; Hao Wang; Yubing Liu; Xintong Xu; Liangying Liu; Yuxin Zhang; Chen Wu; Dongnan Hu; Ling Zhang (Agriculture, Ecosystems & Environment, 2026)